Smoking implement



March26, 1929. E: CALDWELL 1,706,398

' SMOKING IMPLEMENT Filed July 29, 1926 ATTbRNEm Patented Mar. 26, 1929;

EDWIN CALDWELL, or NEW YORK, N. Y."

SMOKING} IMPLEMENT.

1 Application filed Jun 29,

This invention relates to smoking imple- -.ments such as pipes, and cigar and cigarette holders, and particularly to improvements therein for removing the objectionable products of condensation carried over from the burning tobacco. WVhen tobacco is burned in any kind of-smoking implement destructive distillation occurs and in addition to the carbon dioxid and the smoke, various tarry products nicotine and othervaporizable products are carried over as a vapor.

Some of these vaporizable products are condensed to liquids while passing through the stem and mouthpiece, and these liquids in the bore of the mouthpiece and stem'are commonly but erroneously assumed to be saliva which has entered through the mouthpiece. These condensed products are drawn into the mouth to some extent along with the uncondensed vapor products, and it is these prodnets of condensation from the vapors created by destructive distillation which largely produce the biting bitterness on the tongue and the ill efiects which follow smoking. Various attempts have been made to removesuch objectionable products of condensation but .the devices heretofore utilized for that purpose have not removed all of the condensed an improved pipe or cigar or cigarette holder which will be exceptionally efficient and effective in removing the objectionable substances carried over from the burning tobacco; which will be exceptionally simple and inexpensive in construction; which may be readily manufactured with minimum alteration in present pipe manufacture; which may be readily cleaned without soiling the hands and which may be applied to pipes of various shapes and designs' Various other objects will be apparent from the more detailed description which will be given.

According to this invention it is proposed to cause the smoke to traverse a path that is longer than the path usually followed in pipes and other implements heretofore manufactured and to deflect the smoke from a straight path and to give the vapors a centrifugal motion whereby all particles of con densed products are thrown off by deflection and centrifugal action. To accomplish this 1926. Serial No. 125,637.

PATENT orr cspji a battle tube is inserted in the cooling chamber of the implement which tube gives the vapors a centrifugal swirl. This baflie may be conveniently formed of a piece of tubing made from some ductile material such as aluminum which tubing has a portion of its length" x. flattened and twisted into spiral formation.

It has been found desirable to have this bafile so that upon disassembling the implement the tube will remain in the bit portion and may beused as a scraping device to clean the corroded parts of the smoking implement.

An aperture is cut in the bit end of the baffle tube to allow the cleansed and cooled vapor to be drawn into the mouthpiece. The hole may be placed a shortdistance in from the end of the tube so as to leave a well or trap for the collection of any products of condensation.

A more detailed description will nowbe given in connection with the drawings in which: 1 is a longitudinal constructed in accordance with this invention;

Fig. 2 is a side elevation partly in section of a disassembled pipe made in, accordance with this invention;

Fig. 3 is aplan of the baflie tube; V V

Fig. A is a section taken on line 4et of Fig. 3; and

Fig. 5 is a fragmentary section of a modified form of this invention.

For purposes of illustration this invention is shown as applied to a smoking pipe having a bowl 1 with the usual combustion cavity 2 and provided with a stem projection 3, the passage 4: of which communicates with the lower partof the bowl cavity 2. A monthpiece 5 is removably fitted into an enlarged passage 6 or tenon bore forming the cooling chamber as is usual in pipe constructions. The bore 6 instead of having a length corresponding approximately to the length of the entering tenon 7 of the bit or mouthpiece 5 continues for a considerable distance toward the bowl cavity 2 and connects with the passage 4 so as to provide a cooling and trap chamber for a purpose which will appear presently.

A bafile tube 8 is fitted snugly into the inner end of the bore 9 of the mouthpiece and extends loosely into the entire cooling chamber 6. The greater portion of the length of the c so v section of a pipe tube is flattened as at .10 and is given a spiral twist, the degree of flattening depending upon the diameter of the tenon bore of the particular pipe or implement into which the bafiie tube is to be fitted, the greater the degree of flattening resulting in a larger Width to the flattened portion. A small aperture 11 is bored or otherwise formed near one end of the remaining tubular portion of the tube so that smoke from the cooling chamber may enter the bore 9 of the mouthpiece. In assembling the pipe this aperture is always placed facing upwardly in order to eliminate any possibility oftobacco juice running into the bore 9. Between the twisted portion 10 and the hole 11 and adjacent to the aperture two intersecting channels or corrugations 12 are cut or formed upon the flat portion to conduct away any products of condensation that may have collected on the tube and which otherwise would have a tendency to run into the aperture 11 whenever the implement is raised with the bowl portion higher than the mouthpiece. These channels or corrugations will be termed deflectors.

In the modified form as shown in Fig. 5 the center portion only of the baffle tube is flattened and twisted leaving the two ends tubular, one end extending into the bit portion and the other end extending into the passage 4 leading into the bowl. In this form ofthe invention a second aperture 13 is cut into the forward tubular end of the baffle tube to allow smoke to pass from the passage 4 into the chamber 6.

In use the products resulting from burning the tobacco will be drawn into chamber 6 where they will strike the spiral baflie 10. This baflle will direct the smoke along a swirl ing path and any products of condensation will be thrown off due to the centrifugal force and also due to the deflection of the path of the vapors. It has also been found that the bafile tube is very effective to catch and colconveniently used as a scraper to cleanthe corroded parts of the pipe and it is obvious that the tube itself may be readily cleaned by the applicationof the usual pipe cleaners.

The tubes may be madevery cheaply from 7 standard tubingand need very few operations upon them to form the completed battle tube.

It will be obvious that various changes in the details which have been herein described by way of illustration may be made by those skilled in the art within the principle and scope of the invention as defined in the following appended claims.

I claim:

1.. A bafiie tube for smoking implements comprising a single tube having a tubular portion with an aperture therein and having a fiat spirally twisted portion with intersecting deflectors therein.

2. -A smoking implement comprising a tobacco chamber, a cooling chamber, a passage connecting said chambers, a mouthpiece attached to said cooling chamber and a bafile tube within said cooling chamber and extending from the mouthpiece to said connecting passage, said tube having a fiat spirally twisted portion and a tubular portion, said tubular portion having an aperture therein andsaid flattened portion having diverging deflectors therein.

In witness whereof, I hereunto subscribe my signature.

EDWIN CALDWELL. 

